Add big problams from day under led, read previous...

I found this video very helpful on understanding cannabis lighting: www.youtube.com/watch

Light is about having the "right" amount not as much as possible. Read up on DLI (daily light integral) to understand it. Whether it comes from a hps or an led really won't matter much. some growth patterns may be slightly different. so if it drastically got better it's not because of hps vs led it's because of some other factor -- maybe th eLED was underpowered for the area you are covering?

Tu peux passer les plantes d'une croissance sous led a une floraison sous HPS ,elles aiment sa , mais par contre tu peux pas passer d'une croissance sous HPS a une floraison sous led , elles aiment pas , moi j'ai mis des hps avec en complément des barres led uniquement ultra violet et infrarouge pour avoir un spectre complet avec la puissance des hps

Leds run cool, 27 is burning terps already, buds big , but fluffy, not dense at all. People talk shit. Fact. Your question is missing, what is wrong in your mind leds vs hps ???

Its completely different. I had all sorts of issues when I changed over. Its mostly down to the atmosphere and radiated heat. The biggest issue people have with led,s is the temp being too low, its got to be over 27 otherwise you get bleaching.LIight distance,its best to let the plant grow up to the light so have it at the top of your tent,and it only wants to be on 30% and the change from HID is still going to have some effect on it.They're the 3 main things I can think of. I'd check You tube out as I'm sure there's posts pointing out all the things that change with using LEDs.